CN108166513B - Hole forming process for dual-purpose hole of anchor hole and drain hole in muck slope - Google Patents
Hole forming process for dual-purpose hole of anchor hole and drain hole in muck slope Download PDFInfo
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- CN108166513B CN108166513B CN201810001381.3A CN201810001381A CN108166513B CN 108166513 B CN108166513 B CN 108166513B CN 201810001381 A CN201810001381 A CN 201810001381A CN 108166513 B CN108166513 B CN 108166513B
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- hole
- anchor rod
- rod body
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to the technical field of slope protection, in particular to a hole forming process of dual-purpose holes of an anchor hole and a drain hole in a muck slope, wherein a rotary drilling machine is used as power to drill a hollow anchor rod body at a determined position, and the hollow anchor rod body is rotated to a designed depth; when the hollow anchor rod body is drilled, soil excavation and slag discharge need to be carried out; after the inner and outer drilling holes of the hollow anchor rod body are smooth, fixing the hollow anchor rod body and installing a drain pipe at corresponding positions respectively; the hole forming method of the dual-purpose hole improves the construction efficiency, reduces the construction cost and improves the engineering quality.
Description
Technical Field
The invention relates to the technical field of slope protection, in particular to a hole forming process for an anchor hole and a drain hole in a muck slope.
Background
With the development of urban construction, a large amount of residual soil is accumulated to easily form a soil filling side slope. The filling side slope is used as a mixed body side slope formed artificially, the filling side slope is formed by rolling and piling the filling step by step in the forming process, the physical and mechanical properties of the filling are poor, so that the filling side slope formed by piling is unstable, reinforcement prevention and control measures need to be taken for treating the filling side slope, and an anchor rod is a common prevention and control reinforcement measure in side slope treatment; in addition, because the filled side slope has a loose structure and strong water permeability, and the presence of rainfall and groundwater increases the possibility of inducing landslide or debris flow disasters of the filled side slope, the filled side slope needs to be subjected to drainage treatment, and besides a drainage ditch is arranged on the surface of the filled side slope, deep drainage holes are also arranged in the filled side slope.
Because the slag-soil mixture in the soil filling side slope is loose, when the anchor rod and the drain hole are constructed, namely in the hole forming process of the anchor hole and the deep drain hole, the conventional hole forming method is difficult, and the weak loose soil body is easy to have accidents such as hole collapse, drill sticking and the like.
The invention discloses a hole forming process for anchor holes in loose slopes, which is researched by related patents, and comprises the steps of adopting a sleeve wall protection method during construction, adopting a self-advancing anchor rod drilling method and the like, considering that the construction of anchor rod holes in a filled slope is actually required to be carried out, and aiming at reducing the construction cost and improving the construction efficiency on the basis of analyzing the properties of soil in the filled slope, aiming at the hole forming technology for the anchor holes and the drain holes in the filled slope, the invention provides the hole forming process for the anchor holes and the drain holes in the muck slope.
Disclosure of Invention
The invention aims to provide a hole forming process of a dual-purpose hole of an anchor hole and a drain hole in a muck slope, aiming at the defects and shortcomings of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to a hole forming process of a dual-purpose hole of an anchor hole and a drain hole in a muck side slope, which comprises the following steps:
a. determining the positions and depths of the hollow anchor rod body and the drain pipe according to the analysis of the internal structure of the slag body; marking a mark at a corresponding position;
b. b, after the hollow anchor rod body is installed on the rotary drilling machine, at the position determined in the step a, a field technician uses a protractor to adjust the turning angle of the hollow anchor rod body, and then the hollow anchor rod body is drilled into the slag soil body; when the hollow anchor rod body is drilled, soil excavation and slag discharge need to be carried out, during the drilling process, soil excavation work needs to be carried out every time a certain process is drilled, slag discharge is carried out by adopting air of an air compressor, and when wet soil which is not easy to discharge is treated, the drilling process is reduced to carry out slag discharge so as to ensure that the inside of a hole is clean and smooth; stopping drilling and withdrawing the drill rod when the hollow anchor rod body rotates to collapse, performing collapse treatment by a wall-fixing grouting method, inserting grouting holes into the holes to collapse positions, injecting quick-setting mortar to block the walls of the collapse holes, completing grouting for a period of time, and clearing the holes by an air compressor after the initial setting period of the mortar is completed; then, drilling is continued until the hollow drill bit on the hollow anchor rod body is turned to the depth designed in the step a;
c. b, after the step b is finished, strong wind is used for checking, and smooth drilling of the inner side and the outer side of the hollow anchor rod body is ensured;
d. b, after ensuring that the inner and outer drill holes of the hollow anchor rod body are smooth, respectively fixing the hollow anchor rod body and installing a drain pipe at corresponding positions according to the step a; when the hollow anchor rod body is fixed, the method comprises the following steps: d1a, grouting the hollow anchor rod body through the grouting pipe, and stopping grouting when the grouting amount is larger than the theoretical grouting amount and the grout surface meets the design requirement and does not suck any more grout; after grouting, the slurry is solidified into a grouting consolidation body which is wrapped and fixed outside the hollow anchor rod body; d1b, sealing the hole by the concrete pedestal after grouting, and reinforcing the concrete pedestal on the hollow anchor rod body by using a pressure bearing plate; the installation of the drain pipe comprises the following steps: d2a, inserting a drain pipe into the inner cavity of the hollow anchor rod body, wherein the drain pipe is made of PVC; d2b, taking the hollow anchor rod body out of the hole; d2c, sealing the gap between the drain pipe and the wall of the drilled hole by mortar, and forming a concrete fixing body at the hole opening of the drilled hole; d2d, checking whether the drain pipe is unblocked.
Further, the fixing of the hollow anchor rod body comprises the following steps:
d11a, grouting the hollow anchor rod body through a grouting pipe;
d11b, and after grouting, plugging the hole opening of the anchor hole by using quick setting cement.
Furthermore, the hollow anchor rod body comprises a hollow pipe and a hollow drill bit; the hollow drill bit is fixed at the front end of the hollow pipe; the outer side wall of the hollow pipe is provided with external threads.
Compared with the prior art, the invention has the beneficial effects that:
(1) a hole forming method of the dual-purpose hole is designed, so that the construction efficiency is improved, and the construction cost is reduced;
(2) in the construction of the anchor rod, the grouting work between the hole walls enhances the bonding strength between the self-drilling hollow anchor rod and the soil body, thereby enhancing the anchoring effect of the anchor rod and improving the engineering quality;
(3) when the drain hole is constructed, the hole collapse phenomenon is avoided through the protection effect of the self-drilling hollow anchor rod;
(4) after the drain pipe is installed, the self-drilling hollow anchor rod is recovered, so that the construction cost is reduced.
(5) Grouting is also carried out between the hole walls during the construction of the drainage pipe, so that the bonding strength between the drainage pipe and the soil body is enhanced, and the engineering quality is also improved.
Drawings
FIG. 1 is a flow chart of a dual-purpose hole forming process;
FIG. 2 is a schematic structural view of a self-drilling hollow bolt;
FIG. 3 is a schematic view of the anchor bar layout structure in the process of the present invention;
FIG. 4 is a schematic view of a drainage hole arrangement structure in the process of the present invention;
description of reference numerals:
1. an external thread; 2. a concrete fixing body; 3. a hollow tube; 4. a hollow drill bit; 5. a slag soil body;
6. a hollow anchor rod body; 7. a pressure bearing plate; 8. a concrete pedestal; 9. collapsing the hole;
10. grouting and solidifying the body; 11. and a water discharge pipe.
Detailed Description
The present invention is described in detail below with reference to specific examples, as shown in fig. 1 to 4, and the following examples and descriptions are only for explaining the present invention but not for limiting the present invention.
A hole forming process for dual-purpose holes of an anchor hole and a drain hole in a muck side slope comprises the following steps:
a. determining the positions and depths of the hollow anchor rod body 6 and the drain pipe 11 according to the analysis of the internal structure of the muck body 5; marking a mark at a corresponding position;
b. b, after the hollow anchor rod body 6 is installed on the rotary drilling machine, at the position determined in the step a, after a field technician adjusts the turning angle of the hollow anchor rod body 6 by using a protractor, drilling the hollow anchor rod body 6 into the muck body 5; when the hollow anchor rod body 6 is drilled, soil excavation and slag discharge need to be carried out, during the drilling process, soil excavation work needs to be carried out every time a certain process is drilled, air of an air compressor is used for carrying out slag discharge, and when wet soil which is not easy to discharge is treated, the drilling process is reduced for carrying out slag discharge so as to ensure that the inside of a hole is clean and smooth; stopping drilling and withdrawing the drill rod when the hollow anchor rod body 6 rotates to generate a collapsed hole 9, performing collapsed hole 9 treatment by a wall-fixing grouting method, inserting a grouting hole into the hole to the collapsed hole 9, injecting quick-setting mortar to block the wall of the collapsed hole, completing grouting for a period of time, and clearing the hole by an air compressor after the initial setting period of the mortar is completed; then, drilling is continued until the hollow drill bit 4 on the hollow anchor rod body 6 is turned to the depth designed in the step a;
c. after the step b is finished, strong wind is used for checking to ensure that the inner and outer drilling holes of the hollow anchor rod body 6 are smooth;
d. after the inner and outer drilling holes of the hollow anchor rod body 6 are ensured to be smooth, fixing the hollow anchor rod body 6 and installing the drain pipe 11 at corresponding positions according to the step a; when the hollow anchor rod body 6 is fixed, the method comprises the following steps: d1a, grouting the hollow anchor rod body 6 through a grouting pipe, and stopping grouting when the grouting amount is larger than the theoretical grouting amount and the grout surface meets the design requirement and does not suck any more, wherein the grouting process is considered to meet the requirement; after grouting, the concrete is solidified into a grouting concretion body 10 which is wrapped and fixed outside the hollow anchor rod body 6; d1b, sealing the orifice of the concrete pedestal 8 after grouting, and tensioning the hollow anchor rod body 6 by using the pressure bearing plate 7, so that the hollow anchor rod body 6 is tensioned by the pressure bearing plate 7, the hollow anchor rod body 6 is in a pulling state, and the hollow anchor rod body 6 is locked on the bottom layer; the installation of the drain pipe 11 comprises the following steps: d2a, inserting the drain pipe 11 into the inner cavity of the hollow anchor rod body 6, wherein the drain pipe 11 is made of PVC; d2b, taking the hollow anchor rod body 6 out of the hole; d2c, sealing the gap between the drain pipe 11 and the wall of the drilled hole by mortar, and forming a concrete fixing body 2 at the hole opening of the drilled hole; d2d, checking whether the drain pipe 11 is open.
Compared with the prior art, the invention has the beneficial effects that:
(1) a hole forming method for dual-purpose holes in a soil filling side slope is designed, so that the construction efficiency is improved, and the construction cost is reduced;
(2) in the construction of the anchor rod, the grouting work between the hole walls enhances the bonding strength between the self-drilling hollow anchor rod and the soil body, thereby enhancing the anchoring effect of the anchor rod and improving the engineering quality;
(3) when the drain hole is constructed, the hole collapse phenomenon is avoided through the protection effect of the self-drilling hollow anchor rod;
(4) after the drain pipe is installed, the self-drilling hollow anchor rod is recovered, so that the construction cost is reduced.
(5) Grouting is also carried out between the hole walls during the construction of the drainage pipe, so that the bonding strength between the drainage pipe and the soil body is enhanced, and the engineering quality is also improved.
The foregoing is for the purpose of illustrating the invention only and various simple changes and modifications within the spirit of the invention made by those skilled in the art should fall within the scope of the invention.
Claims (3)
1. A hole forming process for dual-purpose holes of an anchor hole and a drain hole in a muck side slope is characterized by comprising the following steps:
a. according to the analysis of the internal structure of the slag body (5), the positions and the depths of the hollow anchor rod body (6) and the drain pipe (11) are determined; marking a mark at a corresponding position;
b. b, after the rotary drilling machine is provided with the hollow anchor rod body (6), at the position determined in the step a, a field technician uses an angle measuring instrument to adjust the turning angle of the hollow anchor rod body (6), and then drills the hollow anchor rod body (6) into the slag soil body (5); when the hollow anchor rod body (6) is drilled, soil excavation and slag discharge need to be carried out, during the drilling process, soil excavation work needs to be carried out when a certain process is drilled, slag discharge is carried out by air of an air compressor, and when wet soil which is not easy to discharge is treated, the drilling process is reduced to carry out slag discharge so as to ensure that the inside of a hole is clean and smooth; stopping drilling and withdrawing the drill rod when the hollow anchor rod body (6) rotates to generate a hole collapse (9), performing hole collapse (9) treatment by a wall-fixing grouting method, inserting a grouting hole into the hole to the position of the hole collapse (9), injecting quick-setting mortar to block the hole wall of the hole collapse, completing grouting for a period of time, and cleaning the hole by an air compressor after the initial setting period of the mortar is completed; then, drilling is continued until the hollow drill bit (4) on the hollow anchor rod body (6) is turned to the depth designed in the step a;
c. after the step b is finished, strong wind is used for checking, and smooth drilling of the inner part and the outer side of the hollow anchor rod body (6) is ensured;
d. after the inner and outer drill holes of the hollow anchor rod body (6) are ensured to be smooth, fixing the hollow anchor rod body (6) and installing the drain pipe (11) at corresponding positions according to the step a; when the hollow anchor rod body (6) is fixed, the method comprises the following steps: d1a, grouting the hollow anchor rod body (6) through the grouting pipe, and stopping grouting when the grouting amount is larger than the theoretical grouting amount and the grout surface meets the design requirement and does not absorb the grout any more when the grouting process meets the requirement; after grouting, the grouting concretion body (10) is solidified and wrapped and fixed outside the hollow anchor rod body (6); d1b, sealing the orifice by the concrete pedestal (8) after grouting, and tensioning the hollow anchor rod body (6) by the pressure bearing plate (7) for reinforcement; installation of a drain pipe (11), comprising the steps of: d2a, inserting a drain pipe (11) into the inner cavity of the hollow anchor rod body (6), wherein the drain pipe (11) is made of PVC; d2b, taking the hollow anchor rod body (6) out of the hole; d2c, sealing the gap between the drain pipe (11) and the wall of the drilled hole by mortar, and forming a concrete fixing body (2) at the hole opening of the drilled hole; d2d, checking whether the drain pipe (11) is unblocked.
2. The hole forming process for the dual-purpose hole of the anchor hole and the drain hole in the muck slope as claimed in claim 1, wherein: the fixing of the hollow anchor rod body (6) comprises the following steps:
d11a, grouting the hollow anchor rod body (6) through a grouting pipe;
d11b, and after grouting, plugging the hole opening of the anchor hole by using quick setting cement.
3. The hole forming process for the dual-purpose hole of the anchor hole and the drain hole in the muck slope as claimed in claim 1, wherein: the hollow anchor rod body (6) comprises a hollow pipe (3) and a hollow drill bit (4); the hollow drill bit (4) is fixed at the front end of the hollow pipe (3); the outer side wall of the hollow pipe (3) is provided with an external thread (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001381.3A CN108166513B (en) | 2018-01-02 | 2018-01-02 | Hole forming process for dual-purpose hole of anchor hole and drain hole in muck slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001381.3A CN108166513B (en) | 2018-01-02 | 2018-01-02 | Hole forming process for dual-purpose hole of anchor hole and drain hole in muck slope |
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| CN108166513A CN108166513A (en) | 2018-06-15 |
| CN108166513B true CN108166513B (en) | 2020-11-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111305887B (en) * | 2020-05-08 | 2021-06-25 | 中国矿业大学(北京) | Shear-resistant anchor pipe cable supporting structure and construction method |
| CN112016224B (en) * | 2020-07-28 | 2022-11-18 | 西南大学 | Analysis and determination method, system, terminal and medium of soil slope sliding surface based on SPH |
| CN111945757B (en) * | 2020-08-14 | 2022-03-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Upward-inclined self-advancing type slope drainage steel pipe structure and construction method |
| CN112627198A (en) * | 2021-01-20 | 2021-04-09 | 中国建筑第八工程局有限公司 | Foundation pit supporting system with drainage function and construction method thereof |
| CN113174978A (en) * | 2021-05-28 | 2021-07-27 | 长沙矿山研究院有限责任公司 | Layered slope rock stratum reinforcing and drainage system and construction method |
| CN114032931A (en) * | 2021-12-13 | 2022-02-11 | 四川路桥建设集团交通工程有限公司 | A kind of fixed structure and method for protecting slope vegetation by using plant fiber blanket |
| CN115478779B (en) * | 2022-08-30 | 2023-10-24 | 福建亿钻机械有限公司 | Slope drilling machine for geological disaster management and intubation construction method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101012654A (en) * | 2006-11-10 | 2007-08-08 | 姚攀峰 | Self-draining reinforced pipe supporting structure and construction method thereof |
| CN102155016A (en) * | 2011-05-10 | 2011-08-17 | 中铁二院工程集团有限责任公司 | Drainage anchor rod, side slope protection engineering repairing and reinforcing structure and construction method |
| CN202810879U (en) * | 2012-08-10 | 2013-03-20 | 淮北凯特精工机械电子科技有限公司 | Wind-driven spiral anchor rod recovery device |
| CN203891018U (en) * | 2014-06-16 | 2014-10-22 | 谢时雳 | Self-drilling type drainage anchoring soil nail |
| CN204024684U (en) * | 2014-09-02 | 2014-12-17 | 安徽理工大学 | A kind of self-drilling slip casting recoverable anchor rod |
| CN104727319B (en) * | 2015-04-07 | 2016-05-11 | 兰州理工大学 | A kind of side slope is from drainage anchor rod and construction method |
| CN105603892B (en) * | 2016-03-04 | 2018-09-14 | 中南大学 | A kind of construction method of water staple water system for Railway Bed Slope |
| CN107142923A (en) * | 2017-05-25 | 2017-09-08 | 湖南科鑫电力设计有限公司 | Drainpipe and the method that side slope downslide is handled using the drainpipe |
| CN107246008B (en) * | 2017-06-30 | 2019-10-01 | 浙江大学 | A kind of construction method from draining anchor cable system of side slope protection |
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Address after: 518000 No. 1043 Shangbu Middle Road, Futian District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN GEOTECHNICAL INVESTIGATION & SURVEYING INSTITUTE (Group) Co.,Ltd. Address before: 518000 No. 1043 Shangbu Middle Road, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN GEOTECHNICAL INVESTIGATION & SURVEYING INSTITUTE Co.,Ltd. |
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